Great for the beginner treasure seeker, Bounty Hunters Tracker II Metal Detector boasts three modes of operation, two-tone audio discrimination and its four control knobs let you set up ground balance exactly the way you like it. Large, analog-style sensitivity meter and the two-tone audio work to let you know where the target is and if its worth digging for. Sensitivity and Discrimination knobs control and finesse the sensitivity meter to your liking. All-Metal and Discrimination detect modes. Manual and automatic ground balance. 1/4 headphone jack. The 7 concentric, closed search coil delivers accurate detection. Low-battery indicator. Manufacturers limited five-year warranty. Made in USA. Batteries: Two 9 volt (not included). Applications: coin, relic, jewelry. Length: 36-46. Search coil: 7 concentric. Frequency: 7.6kHz. Wt: 2.6 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Metal Detectors.